Creation of vector database of cadastral maps

Data conversion and integration services

Background and Objectives

The client is a leading French consultancy providing specialized services in Geomatics and land rights. They specialize in integrating land data for use in land development and infrastructure related projects. Magnasoft has a strategic partnership with the client and provides data conversion and integration services for land cadastre, utilities and Photogrammetry.

Key Aspects of the project

• The project involves Vectorization, Georeferencing & Edgematching of cadastral maps.

Services Rendered and Methodology
The scope of work involved the following activities:

• Plotting and Pre-processing
  • Scans of section maps provided by client are plotted and checked for clarity
• Digitization
  • Digitization using AutoCAD 2000 based on digitization standards
  • Involves line work digitization with proper layerization
  • Quality Check for digitization & textual accuracy
• Georeferencing
  
  
  
  • The maps are georeferenced using Helmert transformation routine developed by Magnasoft in AutoCAD
  • Georeferencing carried out on grid (regular) and non- grid(non regular)
• Quality Control
  • Tools used for checking errors in digitized drawings with regard to network, node placement and text attribution
• Creation of plot and coordinate files
• Edgematching of regular and non-regular maps

Tools Used:

• MicroStation J
• AutoCAD Map